I do usually credit Tesla with more exotic vibrations than simple sound, but there seems to be a correspondence throughout nature that translates into what we know as matter. When I was searching Wikimedia Commons for images to go here, I found an image of similar patterns as cymatics that were formed using Faraday waves instead of audible tones.

I've been on a Machu Picchu kick lately myself, or I recently kicked around the idea that maybe the tight-fitting stones in those megalithic sections were 3D printed long before the Inca came along. Still, whenever I see pictures of those polygonal structures I'm baffled.